Trouble is, those LEDs inhale battery power. So IMO a wireless RGB keyboard is kind of contradictory - sure, you can run it wireless for the keyboard part, but you'll need to (hyperbole incoming) keep it hooked up to some power supply for the RGB (or otherwise LED) part.
My opinion now: as wirelss keyboards with good switches tend to be hard to come by - and especially for gaming, I'd imagine people would like to keep the input lag a small as possible, go for a good wired keyboard with decent switches. I don't game kb+m, but for other uses, the favourite from my arsenal is a Sharkoon PureWriter. TKL, good switches, good service. OFC, you can also (by now) get a keyboard that (on paper) looks basically identical (TKL, alu front plate, Kailh low profile switches) from Logitech - at three times the price...
That's good to know - tbh i'm quite happy with wired KB as it doesn't move about much in-game, but i am seriously thinking of playing with a wireless mouse once again... atm i'm using a fairly basic "mech-dome" Logitech with RGB, after too much enthusiasm with the space bar sent my old mechanical KB into early retirement - now eyeing a full-size wired ADATA with RGB and Cherry RED / Silver options, which comes at a very good price, about half the equivalent Logitech. Never tried their KB's before, but my experience with their drive cases, power banks and other bits & pieces has been very good.
Sharkoon are a very good value brand too, at least in my experience with an M20 mouse that was bought more for backup / an alternate smaller mouse - it ended up being my main FPS mouse for at least 5 years as i really liked the smaller but not too small size for fast-paced stuff...
...meanwhile i have been on a vegetable quest once again as i tend to do on Sundays - the hills are alive with blazing Fungoida!